Iranduba climate — normals and trends
Iranduba (Brazil) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.6 °C and it receives 3,369 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is October (27.6 °C on average) and the coldest is January (26.0 °C). Rainfall peaks in March.
Iranduba averages 0 frost days, 165 hot days (≥ 30 °C) and 305 rainy days per year.
Iranduba has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.1 °C (on 17 October 2015) and the coldest 19.0 °C (on 18 July 1975).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
IrandubaAmazonas
- coords
- -3.28°, -60.19°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.6°C
Average daily high
29.8°C
Average daily low
24.3°C
Annual rainfall
3,369mm
Sunshine / day
9.5h
Mean relative humidity
87%
Average peak wind
8.5km/h
Seasonal range
1.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
165 d/yr
Rainy days (≥ 1 mm)
305 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.4 °C
Average feels-like low
29.3 °C
Average peak gust
27.3 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
17.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.64 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
37.1 °C
17 October 2015
Coldest day
19.0 °C
18 July 1975
Wettest day
213 mm
26 March 1979
Windiest day
19.3 km/h
26 January 2016
Strongest gust
49.3 km/h
24 May 1963
Hottest feels-like
44.6 °C
22 September 2005
Coldest feels-like
18.6 °C
19 July 1975
Sunniest day
12.0 h
6 September 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.5 °C | +0.5 °C | 252 mm | -118 mm |
| Feb | 29.1 °C | 0.0 °C | 558 mm | +192 mm |
| Mar | 29.5 °C | +0.3 °C | 374 mm | -54 mm |
| Apr | 30.0 °C | +0.9 °C | 328 mm | -91 mm |
| May | 30.3 °C | +1.2 °C | 242 mm | -119 mm |
| Jun | 30.2 °C | +0.8 °C | 187 mm | -33 mm |
| Jul | 31.0 °C | +1.2 °C | 59 mm | -92 mm |
| Aug | 31.5 °C | +0.8 °C | 119 mm | -22 mm |
| Sep | 31.4 °C | +0.3 °C | 94 mm | -66 mm |
| Oct | 31.1 °C | -0.1 °C | 224 mm | +45 mm |
| Nov | 31.2 °C | +0.7 °C | 352 mm | +120 mm |
| Dec | 30.5 °C | +1.0 °C | 392 mm | +49 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Iranduba?
Iranduba has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.6 °C and it receives 3,369 mm of precipitation per year.
What is the hottest day ever recorded in Iranduba?
The hottest day measured in Iranduba between 1940 and 2025 was 17 October 2015, reaching 37.1 °C.
What is the coldest day in Iranduba?
The coldest day measured in Iranduba between 1940 and 2025 was 18 July 1975, at 19.0 °C.
Does it snow in Iranduba?
Almost never: Iranduba sees virtually no snow, with about 0 frost days per year.
Has the climate of Iranduba warmed?
Yes: Iranduba warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Iranduba?
The wettest day measured in Iranduba between 1940 and 2025 was 26 March 1979, with 213 mm of rain in 24 hours.
What was the windiest day in Iranduba?
The windiest day measured in Iranduba between 1940 and 2025 was 26 January 2016, with winds reaching 19.3 km/h.
What is the warmest month in Iranduba?
The warmest month in Iranduba is October (27.6 °C on average); the coldest is January (26.0 °C).
How much does it rain in Iranduba?
Iranduba receives on average 3,369 mm of precipitation per year, spread over about 305 rainy days.
Is it sunny in Iranduba?
Iranduba gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
Are there tropical nights in Iranduba?
Yes: Iranduba has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Iranduba?
In Iranduba, between 1940 and 2025, the highest apparent temperature reached 44.6 °C on 22 September 2005, and the lowest was 18.6 °C on 19 July 1975.
Compare Iranduba with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Iranduba